Home / 379,416.29-523,838.61-243,508.82

Finding the Fourth Proportional to 379,416.29, 523,838.61 and 243,508.82

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Solution

The fourth proportional to 379,416.29, 523,838.61 and 243,508.82 is: 336,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,416.29 : 523,838.61 = 243,508.82 : x
  2. Step 2: Convert to fraction form
    379,416.29/523,838.61 = 243,508.82/x
  3. Step 3: Cross multiply
    379,416.29x = 523,838.61 × 243,508.82
  4. Step 4: Simplify right side
    379,416.29x = 127,559,319,172.35
  5. Step 5: Solve for x
    x = 127,559,319,172.35/379,416.29
  6. Step 6: Final answer
    x = 336,198.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.